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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15621) Use Hive's own JvmPauseMonitor instead of Hadoop's in LLAP
Date Thu, 02 Mar 2017 00:42:45 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15891374#comment-15891374
] 

Prasanth Jayachandran commented on HIVE-15621:
----------------------------------------------

This is probably required only for codahale metrics used by HS2 and metastore? With codahale
we still need some bridge to publish to hadoop metrics2. This is not required for LLAP since
we are directly publishing to hadoop metrics2.

> Use Hive's own JvmPauseMonitor instead of Hadoop's in LLAP
> ----------------------------------------------------------
>
>                 Key: HIVE-15621
>                 URL: https://issues.apache.org/jira/browse/HIVE-15621
>             Project: Hive
>          Issue Type: Task
>          Components: llap
>    Affects Versions: 2.2.0
>            Reporter: Wei Zheng
>            Assignee: Wei Zheng
>             Fix For: 2.2.0
>
>         Attachments: HIVE-15621.1.patch, HIVE-15621.2.patch, HIVE-15621.3.patch, HIVE-15621.4.patch
>
>
> This is to avoid dependency on Hadoop's JvmPauseMonitor since Hive already has its own
implementation. HiveServer2 is already using Hive's .
> Need to follow up in HIVE-15644 to add the 3 missing JVM metrics for LLAP.



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